Temporary loose-leaf binder.



No. 710,763. Patented Oct. 7, I902 J. F. CURDES.

TEMPORARY LOOSE LEAF BINDER.

(Application filed May 20, IQOL) {No Model.)

UNTTED STATES PATENT @EEIQE.

JOHN F. OORDES, OF CHICAGO, ILLINOIS.

TEMPORARY LOOSE-LEAF BlNDER.

SPECIFICATION forming part of Letters Patent No. 710,763, dated October 7, 1902.

Application filed May 20, 1901. Serial No. 60,988. (No model.)

T0 (1 whom it may concern.-

Be it known that 1, JOHN F. OORDES, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Temporary Loose-Leaf Binders for Letters, Bills, or other Loose Sheets, of which the following is a full specification,

My invention relates particularly to that class of temporary binders which employ a binding-strip having inipaling-pins affixed thereto and a clamping-plate having holes therein to receive the said pins and a spring plate or plates for engaging the pins and locking the clamping-strip at any desired point thereon. Heretofore a separate springplate detached from the clamping-strip has been employed and a spring-plate pivoted to the clamping-plate having notches in the opposite sides of its'ends and adapted to be swung ofi its pivot transversely to the impaling-pins to engage at its end notches therewith; but these spring-plates are not attached to the clamping-plate in such manner that the latter may be freely lifted and removed from the pins and also adapted to take hold of the pins at each downward movementvthereon without holding the spring-plate with the fin gers.

The object of my invention is to provide a very simple spring locking-plate for the clam ping-plate of a temporary binder which will be permanently attached thereto and will admit of the free movement of the clampingplate in either direction upon the pins and locked at any required position thereon.

My invention consists in certain features hereinafter particularly described and claimed, with reference to the accompanying drawings, wherein-- Figure l is a perspective view of a tempo rary binder with my improved spring lockingplates attached to the clamping-plate thereof; Fig. 2, an enlarged rear elevation with the clampingplate and spring locking-plates in section, one of said spring locking-plates being held up to unlock the impaling-pin and the other springlockingplate being held down by its spring tension to engage with and lock the impaling-pin; and Fig. 3, a perspective view, upon a still larger scale, of one of the spring lockingplates and its connections adapted to be affixed to the clamping-plate.

The binding-strip A carries the posts or impaling-pins B, and, as shown .in Fig. 1, is hinged to a bottom cover. The clampingplate 0 has holes 0 C to exactly correspond in distance from each other with the distance of the pins from each other, thus to allow the clamping-plates-to be freely moved thereon.

Spring locking-plates D are secured to the ends of the clamping-plate, their free ends having a hole d of larger diameter than the pins, thus to allow the ends of the plates D to vibrate from the locked position shown at the left side of Fig. 2 to the unlocked position shown at the right side thereof. The apertures in the locking-plate are somewhat larger than and eccentric with those in the clamping-plate or the pin and so positioned as to closely bind the pins when the locking-plates are in their locking positions. In their elevated or unlocked positions, however, the apertures are concentric with the pins, and being of a larger diameter allow the clampingplate to be freely moved or released from the pins.

' The preferred mode of operating the spring locking-plates and of attaching them to the clamping-plates is shown in the drawings more clearly in detail in Fig. 3, wherein two spring holder-plates E E have oppositelydisposed screw-holes e at their ends through which screws F F pass and screw into threaded holes in the clamping-plate 0, one of said screws F also passing through a hole in the outer end of the spring locking-plate D. The plate E has a rectangular hole e at the middle thereof and oppositely disposed transverse grooves e at the sides thereof to receive, respectively, the tongue g and the journals g of a lever G, and thus hold said lever and tongue in position to swing, respectively, beneath and alongside of the spring lockingplate, so that said plate may be held up at its free end, as shown at the right of Fig.2, to allow the 'clampingplate to be moved freely on the pins or allow the same to be pressed ,down and clamp the said pin, as shown at the left of Fig. 2, to securely hold the clamping-plate thereon when the letters are to be clamped upon the binder.

All of the parts comprising the locking device may be stamped out and easily fitted together and permanently secured to the clamping-plate truly in position and the cost of the binder and locking device reduced to the minimum.

For large binders the device above described has proved light, strong, inexpensive, and most effective under all conditions.

I claim as my invention and desire to secure by Letters Patent- 1. In a temporary hinder the combination with a binding-strip of impaling-pins rigidly secured thereon, a clamping-plate apertured to receive the impaling-pins, oppositely-disposed spring holder-plates secured on the clamping-plate, a spring locking-plate secured at one end on each holder-plate and apertu red to receive one of the impaling-pins and acting normally to positively engage the same, said apertures in the locking-plate when said plates are in their locking position being eccentric with said pin thereby clamping the pin in the apertures thereof and in the clamping-plate, a pivotally-supported lever having a bearing on the holder-plate and adapted to engage and to lift the locking-plate and a leverarm extending outwardly and laterally of the locking-plate and adapted for manual engagement.

2. Alock for temporary binders comprising in combination a spring holder -plate apertured to receive an impaling-post and also apertured to permit of attachment with a clamping-plate, a lever pivotally engaged on the holder-plate by means of a transverse shaft, a spring-plate secured at one end on the holder-plate and normallylying flat along the top thereof and having an aperture therein to receive the impaling-post out of register with the like aperture in the holder-plate,

and a tongue operated by the lever and acting to lift the end of said spring locking-plate to bring the aperture therein into register with that in the holding-plate.

JOHN F. CORDES.

\Vitnesses:

CABLE H. SCHAFER, M. E. NEWELL. 

